问题
选择题
呼吸系统和泌尿系统的主要器官分别是（ ）
A．心和肺
B．肺和肾
C．心和肝
D．肺和胃
答案
答案：B
搜题请搜索小程序“爱下问搜题”
呼吸系统和泌尿系统的主要器官分别是（ ）
A．心和肺
B．肺和肾
C．心和肝
D．肺和胃
答案：B
| 35．Applications put computers to pratical business (1) , but below the (2) it’s the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store (3) . A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time. The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail. |
(5)
A．addition
B．combination
C．difference
D．condition